Thank you for the advice. I did see that baby swimmer diapers are actually allowed on Carnival. They have Camp Carnival for 2 and Up which is why we chose Carnival b/c they do not charge during the Camp Carnival hours, Thank God! We will take turns staying in the cabin at night with the younger one when she goes to bed and the other parent will take the older one to the shows. This will avoid disruptions b/c the 4 year old is very well behaved. We are already taking her to broadway shows and she is a perfect gem during the entire production! If only the 2 year old was that way!